Improvement in sucker-rod joints



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N- PETERS, PHOTO-LITHOGRAPHER, WASHINGTON. D. Cy

i hollow pins,

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*aan um ADAM soon, an.; orrrrusvr'LL-n, PENNSYLVANIA.

l Letters Patent No. 104,5

u I IMPnovell/munir 1N 'sUcKnR-ROD JoINTs.

76, lated JuneQl, 1870.

The Schedulereferred to in these Letters Patent and making part of the same .To all whom it mayrconceru: o o

Be it known that I, ADAM GOOD, Jr., of Titusville,

inthe cbunty of Crawford and State of Pennsylvania,

have invented certainnew and useful Improvements o in Sucker-rodJointsffor Oil-well Tubes; and I do e hereby declare that the followingis a full, clear, and

exact description thereof,`refereuce being had to the t accompanying drawing of -thc same, which makes partof this specification, and inwhich- Figure lrepresents` an elevation of two metallic screwedtogetlier, with substitute sections, and secured to the' `usual wooden connectingrods, and constituting aportion of the sucker-rod i Figure 2 `represents a vertical section 'ofthe same; Figure 3 represeutsauenlarged section of a portion of one of` the pins, and its tubular expandingl and i griping device; i Figure 4 represents a view in perspective of the hollow sectional expanding and griping-core Figure 5 represents `a view, in perspective, of the screw-expander,detached from the griping-core; and

Figure represents a horizontal section, taken at the'line x :v-ofiig. 3, showing the expanding device'in its place within the `hollow pin.

My invention relates-to the construction of the joints of the sections of what is known as the sucker-` l rods of oil-welltubes, and consists inra device for expanding and griping ,the innerI end of the wooden o `c onnecting-rod within the hollow metallic pin,\in cono `neetion with clamping-jaws, or other devices, for sel curing the connecting-.recite said hollow pin, for the f `purpose of not`only increasing vthestrengtli of the sucker-rod, but rendering its connection with both enfdsof thehollow piny more rm, `and bracing it o gainst any lateralplay therein, caused by the movelnet of the sucker-rod;Y to conform to the are describejdby the .moti thewalking-beam to which sure the perfect alignment Inthe accompanying drawing- A represents two metallic` hollow pins, which compose the jointlofutwoseetions of the wooden connecting-rodsyB, into which `theflatter are driven, and secured by means of two Hush clamping-jaws, C, ar-

ranged ou opposite sides of the pins imbedded therein,

provided with annale and female screw, a 1), by whi -h r one is screwed within the other, `or.into substitutes i i `Ihese contiguous. hollow ends are formed with -interior strengthening shoulders, c d, and ithe wooden connecting-rods are driven into these pinsagainst said shoulders, and, therefore, extend nearly through their r.

against the interior shouldcrc of the pin, when theo tube is driven into the rod. i o Its inner end is split vertically about two-thirdsits length, so asto divide it into four sections, and the` end of each section is provided with a rib', g, which Ais made tobite into the wooden connecting-rod B, as the tube is expanded, as shown in figs. 2 and 3.

',Ihe inner end of the interior opening of the tube is conical, andpartially closed by the solid sections, while its other end is open, and provided with a female screw.

Into this tube is screwed an expanding screw-core, F, made conical at its point, so as to conform to the interior opening of the tube, and penetrate between the sections f thereof, so as to open them, and force their ribs y into the wood ot' the connecting-rod, which expands it, causing it totit very tightly within the hollow pin A,`and, in .connection with the clamping- -jaws C, to form an additional lock to the rod length- `to receive the wrench by which it is screwed into the tube-and the` interior screw is of sutlicient depth to allow the core to produce the proper expansion of the tube.

It frequently happens thatione or more of the sections of a sucker-rodbecome, by long use, out of alignment, or are, by some accident, broken, when the rettingof a new section of rod is rendered necessary.A To accomplish this, without the removal of thewhole line of rodsfrom the well, I employ hollow malleableiron substitutes, G G2, provided at either end with female screw-threads, or with 4a male screw-thread at one end and a female at the other, whereby I am enabled to joint the rod, whether the contiguous ends to be jointed be a male or female screw-thread, or one of each, and `one or both of the substitutes may be used, as required, to it the pins.` These substitutes are made hollow, and a great saving in the weight of the "suck .-rorlfis attained.

They are provided with shoulders, 7c, against which the ends of the hollow pins or those of the substitutes abut, thus rendering the rod perfect in its alignment, strong, and durable, while its weight is much less than ,that of the ordinary sucker-rods, where solid substitutes are employed.

Havingdescribed my invent-ion,

I claimv 1. In combination with the clamping-jaws C,fo1'sc -cnring the connecting-rod B to its hollow joint-pin A,

`Li. The locking-tube E of the connecting-rod of the joint-pin, split and made sectional, and provided with griping-ribs g, in combination with a conical expanding-core, F, as herein shown and described.

5. The expansible locking-tube E, constructed with an annular and a square shoulder, e h, in combination with thc interior shoulder c of the hollow pin, having a square opening, j, for the purpose of both locking the tube when driven into its rod, and forming a stop thereto when so driven, in the manner and for the purpose substantially as hereinbefore described.

6. The combination of the clamping-jaws C, the hollow metallic pin A, the connecting-rod B, the expansible locking-tube E,u and the expanding screw-core F, the whole constructed, arranged, and Aoperating in the manner and for the purpose substantially as hereinbeforc described.

ADAM GOOD, Jn.

Witnesses:

R. CAMERON, J r., J. J. HOLDEN. 

